On June 8, 2026, firebase-admin 14 shipped and removed the namespaced API: admin.firestore() , admin.auth() , admin.messaging() and friends are gone. Every call has to move to the modular entry points ( getFirestore() , getAuth() , getMessaging() …).

Four months later, I looked at the npm registry's per-version download counts for the last week.

Out of 8,995,732 downloads that week:

Major Share

v14 (current) 26.9%

v13 47.7%

v12 19.6%

v11 4.1%

v10 and older 1.7%

So 73% of installs are still on v13 or older. v13 alone is downloaded almost twice as often as the version that replaced it.

A caveat before anyone jumps in: npm downloads are not projects. Most of these come from CI pipelines reinstalling dependencies, so one busy repository counts many times.…